Televisions of many builds, sizes and brands are available for purchase. LCD, plasma, rear-projection and tube-operated sets, like most electronic devices, all have their own problems and technical issues. Fortunately, many of the most common issues with televisions can be addressed with repair options that do not involve diving into internal wiring or circuitry.
Rear Projection
Rear-projection televisions such as the Sony KDF-60XBR950 feature very large displays, high-definition picture and enhanced brightness technology. Occasionally, these televisions have problems with the audio system. If you are receiving no sound from the speakers, ensure that the mute button is not activated. If there is still no sound, check the sound at various volumes to see if a signal is being received at all and check that the "Speaker" setting in the main menu is set to "On." If this fails to restore sound, it is possible that infrared interference from other devices is damping the sound output. Move the television away from sources of infrared interference such as DVD players, VCRs, cordless headphone receivers or cordless phone bases. If the problem persists, contact a certified technician for repair.
LCD
LCD televisions such as the Philips 5000 series 55PFL5705D/F7 have large screens, 1080 native HD picture quality, SRS TruSurround HD sound and even USB and memory card inputs for external hard drives and peripheral video devices. Some users encounter trouble obtaining an image when using the HDMI connection. If no picture comes on when attaching an HD-ready device to the television's HDMI input, ensure that the display input is set to the proper HDMI input. If this does not restore the picture, check the HDMI cable to ensure that it is certified for use with HDCP-authentic machines. If the HDMI cable is authenticated, reset the television by unplugging it from the wall and waiting 60 seconds. Plug the television back in and try again. If there is still no display, contact a repair technician.
LED
Innovations in backlighting and motion response times have allowed LED televisions to offer a better image than many LCD televisions in an even thinner design. These televisions sometimes suffer "ghost imaging" when connected to certain cable boxes via the HDMI input. Solve this by first checking connection wiring for loose connections. If the problem persists or no fault can be found, the ghost image may stem from an incompatibility with the HD device being used on the television. Hook this device up through the digital definition component cables instead. If the problem persists, contact a certified repair technician.
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